A toddler who served as the best man at his parents’ wedding over the weekend, died Monday due to complications associated with Fanconi anemia, a rare blood disorder, the Today Show reports.

Logan Stevenson had been suffering from leukemia and malignant tumors on his kidneys since December 2011. When doctors recently told his parents, Christine Swidorsky and Sean Stevenson, that their son only had a few weeks to live, the couple decided to get married this past Saturday instead of next July, as they had planned, so that their son could be there.

During a backyard wedding at the family’s home in Jeannette, Pennsylvania, east of Pittsburgh, the terminally-ill boy, dressed in a tan, pinstripe suit and orange shirt, held his favorite teddy bear while his mother carried him down the aisle before passing him off to his grandmother. Being all together as a family was “a dream come true,” Swidorsky told NBC’s WPXI.

But Logan took a turn for the worse Monday when he began to have trouble breathing. “Sean and I held him all day he was comfortable with his medication then at 8:18 my son took his last breath in my arms,” Swidorsky wrote on Facebook last night. “No more sickness no more hospitals.”

Logan is survived by his parents and his sisters Savannah, 1, and Isabella, 3.